java - Multi Threaded Port Scanner, scanning multiple IP's. How can I ensure that the ip's are scanned one at a time -


i building port scanner can scan ip range. have got point parameters correct , multithread port scanner works single ip, problem have when trying scan range of ip's starts of x number of multithreaded scanners (x being number of ip's) @ same time , of course causing memory problems. wondering how threadpools run sequentially. scanning single ip @ time in order.

this code have defining list of ip addresses , putting them multithread scanner. 

        else if (chkiprange.isselected()==true){         system.out.println("multi ip scan started");         if(multiscanner==null && errorcheck()==0 || isscanning==false){             isscanning=true;             lstmessagesmodel.clear();             listlisteningmodel.clear();             btnscan.settext("stop");             lstmessagesmodel.addelement("scan started...");             int p1 = integer.parseint(txtstartport.gettext());             int p2 = integer.parseint(txtfinalport.gettext());              try {                 inetaddress ip1 = inetaddress.getbyname(txttargetip.gettext());                 inetaddress ip2 = inetaddress.getbyname(txtfiniship.gettext());                 list<inetaddress> iplist = new arraylist<inetaddress>();                  int ip1int = bytebuffer.wrap(ip1.getaddress()).getint();                 int ip2int = bytebuffer.wrap(ip2.getaddress()).getint();                  (int = ip1int; <= ip2int; i++) {                     inetaddress ipname = inetaddress.getbyname(string.valueof(i));                     iplist.add(ipname);                     system.out.println(ipname);                 }                 (inetaddress ipsingle : iplist) {                     multiscanner = new multithread(ipsingle, p1, p2, this);                     multiscanner.start();                     system.out.println("new thread started");                 }              } catch (unknownhostexception e) {                 lstmessagesmodel.addelement("unable connect");             }         }     }

i can see creating new instance of multithread scanner each ip address , root of problem, unsure how send new ip address scanner without creating new instance?

thank


Comments

Post a Comment

Popular posts from this blog

curl - PHP fsockopen help required -

i trying work on cloudflare api , have found in documentation. unfortunately have no idea how can use in fsockopen or through curl. here example of post request. need know how can make request below data post using curl or fsockopen curl https://www.cloudflare.com/api_json.html -d 'a=cache_lvl' \ -d 'tkn=8afbe6dea02407989af4dd4c97bb6e25' \ -d 'email=sample@example.com' \ -d 'z=example.com' \ -d 'v=agg' here link cloudflare https://www.cloudflare.com/docs/client-api.html#s4.2 try one: $ch = curl_init("https://www.cloudflare.com/api_json.html"); curl_setopt($ch, curlopt_returntransfer,1); curl_setopt($ch, curlopt_followlocation, 1); curl_setopt($ch, curlopt_ssl_verifypeer,false); // handling of -d curl parameter here. $param = array( 'a' => 'cache_lvl', 'tkn' => '8afbe6dea02407989af4dd4c97bb6e25', 'email' => 'sample@example.com', 'z' =...
Read more

HTTP/1.0 407 Proxy Authentication Required PHP -

i working in restricted network/limited access internet. since have use proxy make web service call. here php code calling web service , response . $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' => $proxy_host, 'proxy_port' => $proxy_port, 'proxy_login' => $proxy_login, 'proxy_password' => $proxy_password)); response is fatal error: uncaught soapfault exception: [wsdl] soap-error: parsing wsdl: couldn't load ' http://www.xyz.com/abc/wsdls/login.wsdl ' : failed load external entity if copy url error message , paste in browser(with same proxy settings) works. 2nd scenario is, if pass values instead of variables giving me diffarant response $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' ...
Read more

c# - Resource not found error -

i have problem accessing method on homecontroller. show code of method : [httpget] public actionresult decriptidentifiantetredirige(string login_crypter, string mdp_crypter) { string loginacrypter = _globalmanager.protegemotdepasse(login_crypter); string mdpacrypter = _globalmanager.protegemotdepasse(mdp_crypter); user userapp = new models.user(login_crypter, mdp_crypter); if (userapp.authentificationvalidee(userapp.userlogin, userapp.password)) { session["name"] = userapp.userlogin; return redirecttoaction("accueil", "home"); } else { return redirecttoaction("validerauthentification", "home"); } } then in routeconfig.cs wrote route : routes.maproute( name: "authentificationapresdecryptage", url: "{controller}/{action}/{login_crypter}/{mdp_crypter}", defaults: new...
Read more